MINECRAFT. Survival Guide in the Ocean

This is a guide to all the amazing and dangerously perilous adventures that await you in the waters of Minecraft!
You have probably already guessed that there is an entire world down there. The ocean of the Minecraft world is plentiful... with diverse life and rare treasures, however, the water hides new dangers that pose a threat to survival.
The purpose of publishing «MINECRAFT. Survival Guide in the Ocean» is:

In fact, the ocean in Minecraft is divided into several biomes, each of which is unique in its own way.
Explorers of the underwater depths will find exhaustive instructions on how to breathe underwater, find sunken treasures, and face guardians and other deep-sea monsters.
The ocean is quite heterogeneous. Icy, cold, lukewarm, and warm oceans: each of them has its characteristics that should be known and used to one’s advantage.

 
By learning all the secrets of this guide, the reader will become a true oceanologist of the cubic world!